Oscillation and Waves

Oscillation and Waves

1. Oscillation and Periodic Motion

   • Period Motion
   • Period
   • Frequency
     • Hertz (Hz)
     • Inverse of the period
     • f = C / λ f (frequency) C [m/s ] (The speed of light) λ(the wavelenght)
     • T = 1 / f
   • Simple Harmonic Motion
     • Amplitude
     • Change in amplitude does not ffect the period
     • A sine wave
     • Several Factors
       • Period of mass on a spring varies directly with the mass
       • Period of mass on a spring varies inversely with the spring constant
     • A resorting force

2. The Pendulum

   • Properties of Pendulums
     • Different pendulums oscillate at different rates
     • Move with simple harmonic motion
     • Simple pendulum
     • The periodic pendulum depnds on its lenght and on the acceleration due to gravity
   • Period and mass
     • Period and Amplitude
       • Period and Lenght
   • Resonance
     • Can produce large-amplitude oscillations
       • Natural Frequency
       • Affects how things are designed

3. Waves and Properties

   • Waves Properties and Behavior
     • Crest
     • Troughs
     • Waves have characteristic properties
       • Wavelenght
     • Wavelength and frequency determine wave speed
     • Waves have different speeds in different materials
       • Medium ( determined the speed of wave)
       • Mechanical waves
     • Wave can reflect in different ways
   • Waves Formation and Wave Types
     • Perpendicular motions occur in transverse waves
       • Transverse wave
     • Parallel motions occur in longitudinal waves
       • Longitudinal wave
     • Wave (traveling disturbance)
     • Water waves have a combination of properties

4. Interacting Wave

   • Superposition and interference
     • Resultant wave
     • Principle of superposition
     • Overlapping waves interact with one another
     • Resultant waves can be larger or smaller
       • Constructive Interference (Larger wave)
       • Destructive Interference (Smaller wave)
     • Can form interference patterns
   • Standing Waves
     • Specific point along a standing wave do not move
       • Nodes
       • Antinode
       • Certain frequencies produce standing waves